2000 Lexus GS300 Engine Cooling Parts

Keep Your 2000 Lexus GS300 in Top Shape with Quality Engine Cooling Parts

Whether you’re repairing or upgrading your Engine Cooling Part, using high-quality parts is key to keeping your 2000 Lexus GS300 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Thermostats, Radiators, and Radiator Caps. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Engine Cooling Parts from Trusted Brands

Looking for a reliable Engine Cooling Part? We’ve got you covered with options from brands you know and trust like Carquest Premium, FELPRO, and Sankei. For example, Carquest Premium Engine Cooling Parts start at just $14.99 with an average 4.4 star rating. FELPRO and Sankei offer similar pricing and quality, backed by strong customer feedback. With over 244 reviews and a solid 4 star average, you can shop with confidence knowing other Lexus GS300 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2000 Lexus GS300 Engine Cooling Part at Advance Auto Parts is around $80.79, with a range that starts at $1.49 and goes up to $519.99. With 41 options in stock from 19 trusted brands, finding the right fit is easy. Popular picks like Coolant Temperature Sensor, Thermostat: 180 Degrees, and Radiator Drain Cocks start at just $7.29 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Engine Cooling Part, don’t forget to check out other key components like Blend Doors and Blower Motor and Related Products. At Advance Auto Parts, we’re here to help you keep your 2000 Lexus GS300 in peak condition, inside and out.

Essential 2000 Lexus GS300 Engine Cooling Parts

Carquest Premium – Engine Coolant Reservoir Cap (Part No.10254)

Engine Coolant Reservoir Cap

from

$9.49
Manufactured to meet all OEM specifications. Designed to be easy to install and remove. Manufactured from high quality components with proper relief and vacuum valves. Quality tested to stand up to even the most demanding automotive cooling systems.

Product Features:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
See More

NTC – Tama Engine Coolant Temperature Sensor (Part No.C6020146330NTC)

Tama Engine Coolant Temperature Sensor

from

$41.94
The NTC-Tama Engine Coolant Temperature Sensor is a high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:
  • Premium Original Equipment replacement
  • Provides performance and dependability
  • Manufactured to meet OE specifications
See More

NPW – Water Pump (Part No.G3000115470NPW)

Water Pump

from

$79.89
The NPW water pump is a 100% new replacement and contains no remanufactured components, assuring original equipment performance, quality and fit.

Product Features:
  • OE-Equivalent and direct fit application.
  • 100% new with no remanufactured parts.
  • Advanced impeller design.
  • Quality cast housing.
  • Precision bearings.
  • Resistant to corrosion.
  • Unitized bearing assembly.
See More

Dorman – Radiator Fan Assembly: Dual, Cost Effective and Reliable (Part No.620-557)

Radiator Fan Assembly: Dual, Cost Effective and Reliable

from

$375.99
This engine cooling fan assembly is precision-engineered to match the fit and performance of the stock radiator fan on specific vehicle years, makes and models. It has been rigorously tested to ensure it cools as effectively as the original part.

Product Features:
  • Ideal replacement – this engine cooling fan assembly was precision-engineered to match the fit and performance of the stock radiator fan assembly on specific vehicles.
  • Complete package – assembly is designed with the same materials and components as the original part.
  • Quality assured – motors are tested in laboratory settings to ensure performance
  • Cost effective and reliable – trustworthy manufacturing for far less than same part at the dealership
See More

Ishino – Water Pipe O-Ring (Part No.G2026182915ISH)

Water Pipe O-Ring

from

$2.30
Water Pipe O-Ring

Dorman – OE Solutions Coolant Reservoir – Expansion Tank (Part No.G1030829429DOR)

OE Solutions Coolant Reservoir - Expansion Tank

from

$278.19
Dorman’s Engine Coolant Recovery Tank is designed for enduring use. It resists the expansion and cracking that extreme temperature fluctuations can cause. Plus, the durable plastic construction prevents coolant fluid loss.

Product Features:
  • Comes with reservoir cap
  • Level sensor included (where applicable)
  • Direct replacement for a proper fit every time
  • Quality tested to ensure trouble-free installation and performance
See More

Dorman – Non-Pressurized Coolant Reservoir (Part No.603-429)

Non-Pressurized Coolant Reservoir

from

$187.99
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.

Product Features:
  • Direct replacement – this engine coolant reservoir matches the fit and function of the original part.
  • Ideal solution – engineered for a seamless installation.
  • Durable construction – manufactured from quality materials to withstand underhood heat and vibration
  • Trustworthy design – backed by 100 years of automotive aftermarket experience
See More

Felpro – Multi-Purpose O-Ring (Part No.35768)

Multi-Purpose O-Ring

from

$1.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
See More

Carquest Premium – Multi Purpose Relay (Part No.RAA1254)

Multi Purpose Relay

from

$27.99
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
See More

Dorman – Help – Radiator Drain Cocks (Part No.61125)

Radiator Drain Cocks

from

$7.29
This radiator drain petcock is a direct replacement for the original equipment plug that may have deteriorated or corroded. Made of quality materials, this petcock is engineered to strict standards for durable use over time.

Product Features:
  • Direct replacement – this radiator drain petcock matches the fit and function of the original equipment part.
  • Durable construction – this part is made of quality materials for a long service life
  • Saves money – offers original equipment quality at a competitive price
  • Quality assured – this petcock has undergone virtual testing to assure proper fit and function
See More

Motorad UltraStats – Thermostat: 180 Degrees (Part No.5298-180)

Thermostat: 180 Degrees

from

$27.49
This premium upgraded thermostat is everything you were looking for. UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resistance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components. This is the perfect upgrade to help insure your cooling system is working exactly as you need and expect it to for longevity.

Product Features:
  • Heavy gauge stainless steel components offer increased reliability and long-lasting durability
  • Exclusive BLVT Valve Technology minimizes thermal shock to cooling system components
  • Stainless steel thermal element for unmatched corrosion resistance and revolutionary REAX wax mixture provides quicker reaction time
  • AccuSpring Design for stable temperature control and increased cabin comfort
See More

Mahle – Engine Coolant Thermostat Gasket (Part No.G403117595MAH)

Engine Coolant Thermostat Gasket

from

$8.35
The Mahle Engine Coolant Thermostat Gasket is a high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:
  • Seals the thermostat housing and helps prevent coolant from leaking from the engine for proper engine temperature
  • Premium Original Equipment replacement
  • Provides performance and dependability
  • Manufactured to meet OE specifications
See More

Carquest Premium – Radiator Cap Tester Adapter (Part No.12024)

Radiator Cap Tester Adapter

from

$16.49
Tester adapter for the MT-300 cooling system pressure testers. Professional grade test equipment to ensure an automotive cooling system is operating at the correct pressure. Made from high quality materials to ensure durability. Designed to test automotive coolant caps.

Product Features:
  • Machined metal construction
  • Works with MT-300 pressure tester
  • Tests coolant caps
  • Professional quality
See More

Factory Air – Engine Mounted Cooling Fan Temperature Switch (Part No.36549)

Engine Mounted Cooling Fan Temperature Switch

from

$44.99
High quality OE replacement part with all components needed to complete the job

Product Features:
  • Contains gaskets, O-rings, or seals to properly replace the product
  • Brass construction for accurate temperature sensing
  • Zinc coated terminal to resist corrosion
  • Vehicle specific applications
See More

Dorman – Engine Coolant Thermostat Housing Cover (Part No.G4011182825DOR)

Engine Coolant Thermostat Housing Cover

from

$53.73
Dorman’s Engine Coolant Thermostat Housing has improved durability and resistance. It withstands the extreme changes in temperature that frequently cause housing to become brittle, crack and leak. Maintain the steady flow of coolant and lessen the chances of overheating.

Product Features:
  • Direct replacement for a proper fit every time
  • Hoses slide on for easy installation
  • High-quality plastic or metal construction
  • Includes all hardware necessary for a complete repair (where applicable)
See More

Dorman – Coolant Housing/Water Outlet: with Housing and Gasket, 75 Degree Neck Angle (Part No.902-5070)

Coolant Housing/Water Outlet: with Housing and Gasket, 75 Degree Neck Angle

from

$21.99
This replacement engine coolant thermostat housing is engineered to match the fit and durability of the stock thermostat housing on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.

Product Features:
  • Ideal replacement – this engine coolant thermostat housing directly replaces the original housing on specified vehicle years, makes and models.
  • Durable construction – this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking.
  • Cost-effective and reliable – offers original manufacturer quality at lower cost than getting replacement at dealer
  • Industry-leading design – professionally engineered by the aftermarket leader in replacement thermostat housings
See More

Carquest Premium – Temperature Sender With Gauge (Part No.WTC1147)

Temperature Sender With Gauge

from

$7.99
Approved materials for increased durability in even the most extreme temperatures. All MotoRad Coolant Temperature Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.

Product Features:
  • 100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
  • Thread Sealant and/or O-ring pre-installed on applicable sensors to ensure leak free performance
  • Brass sensor housing precision machined to meet or exceed OE thermal conductivity
  • OE precision matched thermistor position for correct output parameters
  • Extensive product testing includes salt spray, high/low temperature impact, thermal vibration, durability, static electricity, and micro tension, among other tests, to ensure all sensors meet or exceed OEM specifications.
See More

Carquest Premium – Engine Coolant Temperature Sender (Part No.WTA1804)

Engine Coolant Temperature Sender

from

$51.99
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
See More

Carquest Premium – Engine Cooling Fan Switch (Part No.ACA1553)

Engine Cooling Fan Switch

from

$52.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
See More

Carquest Premium – Engine Cooling Fan Switch (Part No.WTA1645)

Engine Cooling Fan Switch

from

$108.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
See More

DENSO – First Time Fit Radiator (Part No.G1000383151ND)

First Time Fit Radiator

from

$339.92
DENSO is a leading supplier of radiators to OE car makers around the world. Manufacturers rely on our quality and innovation to remain on the leading edge of engine cooling technology. Our OE experience and know-how ensure our products provide unmatched performance, reliability and fitment. Radiator performance is essential for proper engine cooling and function. DENSO’s radiator configurations, tanks, fin pitch, core dimensions and materials meet OE manufacturer’s rigid standards. All DENSO radiators pass our strict durability and function tests. As the result, our radiators deliver reliable performance even under the most demanding conditions. Radiator types: Plastic tank with aluminum core. Plastic tank with copper core. Cross-flow and down-flow configurations. DENSO is known for the unsurpassed quality of its products. Plastic, copper or aluminum components: it doesn’t matter. Our DENSO radiators are dependable, lightweight and made to last. An investment in a DENSO radiator will pay dividends in the long run. Radiators can fail causing leaks or inefficient cooling. This can lead to your engine to run hotter which in turn creates excess wear and tear on the engine. DENSO radiators are designed with our First Time Fit® philosophy in mind. You get radiators that drop in easily without the need for adjustment, brackets or modification of any kind. Our radiators are precision built to provide the right part, the right fit, the first time.

Product Features:
  • Fin Pitch – Superior fin waves provide a higher heat transfer.
  • Flow Configuration – Available in cross-flow and down-flow configurations.
  • Aluminum or Copper Core – Thin-tube construction assures maximum cooling efficiency.
See More

DENSO – First Time Fit Radiator (Part No.G1000688284ND)

First Time Fit Radiator

from

$273.37
DENSO is a leading supplier of radiators to OE car makers around the world. Manufacturers rely on our quality and innovation to remain on the leading edge of engine cooling technology. Our OE experience and know-how ensure our products provide unmatched performance, reliability and fitment. Radiator performance is essential for proper engine cooling and function. DENSO’s radiator configurations, tanks, fin pitch, core dimensions and materials meet OE manufacturer’s rigid standards. All DENSO radiators pass our strict durability and function tests. As the result, our radiators deliver reliable performance even under the most demanding conditions. Radiator types: Plastic tank with aluminum core. Plastic tank with copper core. Cross-flow and down-flow configurations. DENSO is known for the unsurpassed quality of its products. Plastic, copper or aluminum components: it doesn’t matter. Our DENSO radiators are dependable, lightweight and made to last. An investment in a DENSO radiator will pay dividends in the long run. Radiators can fail causing leaks or inefficient cooling. This can lead to your engine to run hotter which in turn creates excess wear and tear on the engine. DENSO radiators are designed with our First Time Fit® philosophy in mind. You get radiators that drop in easily without the need for adjustment, brackets or modification of any kind. Our radiators are precision built to provide the right part, the right fit, the first time.

Product Features:
  • Fin Pitch – Superior fin waves provide a higher heat transfer.
  • Flow Configuration – Available in cross-flow and down-flow configurations.
  • Aluminum or Copper Core – Thin-tube construction assures maximum cooling efficiency.
See More

Felpro – Engine Coolant Thermostat Housing Gasket (Part No.35809)

Engine Coolant Thermostat Housing Gasket

from

$5.49
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design
  • Validated for fit, form, and function
  • Quality that you can trust
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
See More

Stant – THERMOSTAT SEAL (Part No.27286)

THERMOSTAT SEAL

from

$1.49
THERMOSTAT SEAL

Felpro – Engine Coolant Thermostat Seal (Part No.35445)

Engine Coolant Thermostat Seal

from

$5.49
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design
  • Manufactured for the sealing repair environment
  • Validated for fit, form, and function
  • Quality that you can trust
See More

Carquest Premium – Radiator Cap: 13 PSI (Part No.10241)

Radiator Cap: 13 PSI

from

$14.99
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.

Product Features:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
See More

Carquest Premium – Radiator Cap: 16 PSI (Part No.10242)

Radiator Cap: 16 PSI

from

$14.99
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.

Product Features:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
See More

Sankei Switches – Sankei Switches Radiator Cap (Part No.G101045813SAK)

Sankei Switches Radiator Cap

from

$11.27
The Sankei Switches radiator cap range has been developed to operate within original equipment manufacturer’s specifications. A faulty radiator cap can cause your car to boil-over at a lower temperature. Test or replace the coolant cap when servicing the cooling system.

Product Features:
  • Meets Original Equipment specifications.
  • Made from premium materials.
  • Designed to function on open cooling systems and overflow reservoir type systems.
See More

Most Popular Thermostats for 2000 Lexus GS300s

Enhance your 2000 Lexus GS300 with one of the 6 Thermostats we have in stock, starting at just $11.80.

Carquest Premium – Standard Thermostat: 180 Degrees (Part No.14108)

Standard Thermostat: 180 Degrees

from

$17.29
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
See More

Motorad UltraStats – Thermostat: 180 Degrees (Part No.5298-180)

Thermostat: 180 Degrees

from

$27.49
This premium upgraded thermostat is everything you were looking for. UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resistance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components. This is the perfect upgrade to help insure your cooling system is working exactly as you need and expect it to for longevity.

Product Features:
  • Heavy gauge stainless steel components offer increased reliability and long-lasting durability
  • Exclusive BLVT Valve Technology minimizes thermal shock to cooling system components
  • Stainless steel thermal element for unmatched corrosion resistance and revolutionary REAX wax mixture provides quicker reaction time
  • AccuSpring Design for stable temperature control and increased cabin comfort
See More

NTC – Thermostat (Part No.G400038385NTC)

Thermostat

from

$34.62
NTC offers a full line of thermostats to replace your original equipment thermostat. This includes a wide variety of temperature ranges all designed to operate within OEM specifications.

Product Features:
  • Strict quality control, and functional testing
  • Self-cleaning and self-aligning thermostat valve
  • Original equipment design provides exact fit and performance
  • Precise sealing edges reduce leakage and premature cooling
  • Temperature sensitive heat motor provides consistent valve response for smooth performance and precise engine cooling
  • Stainless steel assembly and springs are engineered for long life
See More

Kuzeh – Kuzeh Thermostat (Part No.G400038385KUZ)

Kuzeh Thermostat

from

$28.82
Kuzeh offers a full line of thermostats to replace your original equipment thermostat. This includes a wide variety of temperature ranges all designed to operate within OEM specifications.

Product Features:
  • Strict quality control, and functional testing
  • Self-cleaning and self-aligning thermostat valve
  • Original equipment design provides exact fit and performance
  • Precise sealing edges reduce leakage and premature cooling
  • Temperature sensitive heat motor provides consistent valve response for smooth performance and precise engine cooling
  • Stainless steel assembly and springs are engineered for long life
See More

Beck/Arnley – Thermostat (Part No.143-0714)

Thermostat

from

$26.99
Beck/Arnley parts meet foreign nameplate OE specifications for form, fit and function. Our product specialists work with a network of global sourcing partners so you can install the right part with confidence.

Product Features:
  • Matches OE form, fit and function
  • Features a standard jiggle valve where required by OE and has a long stroke for maximum cooling
  • Constructed with premium materials for durability
  • Be sure to use the proper coolant to maximize cooling system components. See Beck/Arnley catalog for the coolant for this application.
  • Application specific for this vehicle
See More

Autopart International Inc – Thermostat (Part No.G40001989761API)

Thermostat

from

$11.80
Thermostat

Best-Selling 2000 Lexus GS300 Radiators

Upgrade your GS300 with one of our 3 best-selling Radiators, earning an average 4 stars rating across 5 reviews.

Carquest Premium – Radiator: With Transmission Oil Cooler (Part No.431465)

Radiator: With Transmission Oil Cooler

from

$156.99
Carquest Premium radiators are designed and engineered for maximum performance, using the highest-grade materials to ensure all radiators meet or exceed original equipment (O.E.) fit, form and function. Carquest Premium radiators are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Most modern vehicles use radiators with plastic tanks and our parts are engineered with integrated ribbing to prevent damage during thermal cycling. Carquest Premium radiators are also 100% tested to ensure a durable, leak-free cooling system repair.

Product Features:
  • Thermal tested under real-life temperature simulations
  • High tensile strength aluminum for maximum crimp strength
  • Plastic tanks are engineeredáwith integrated ribbingáfor addedástrength to withstand cracks, bowing and distortion during thermal cycles
  • Thermal expansion slots extend core life and reduce failure rates by allowing improved core expansion and contraction during systematic heat cycles
See More

DENSO – First Time Fit Radiator (Part No.G1000383151ND)

First Time Fit Radiator

from

$339.92
DENSO is a leading supplier of radiators to OE car makers around the world. Manufacturers rely on our quality and innovation to remain on the leading edge of engine cooling technology. Our OE experience and know-how ensure our products provide unmatched performance, reliability and fitment. Radiator performance is essential for proper engine cooling and function. DENSO’s radiator configurations, tanks, fin pitch, core dimensions and materials meet OE manufacturer’s rigid standards. All DENSO radiators pass our strict durability and function tests. As the result, our radiators deliver reliable performance even under the most demanding conditions. Radiator types: Plastic tank with aluminum core. Plastic tank with copper core. Cross-flow and down-flow configurations. DENSO is known for the unsurpassed quality of its products. Plastic, copper or aluminum components: it doesn’t matter. Our DENSO radiators are dependable, lightweight and made to last. An investment in a DENSO radiator will pay dividends in the long run. Radiators can fail causing leaks or inefficient cooling. This can lead to your engine to run hotter which in turn creates excess wear and tear on the engine. DENSO radiators are designed with our First Time Fit® philosophy in mind. You get radiators that drop in easily without the need for adjustment, brackets or modification of any kind. Our radiators are precision built to provide the right part, the right fit, the first time.

Product Features:
  • Fin Pitch – Superior fin waves provide a higher heat transfer.
  • Flow Configuration – Available in cross-flow and down-flow configurations.
  • Aluminum or Copper Core – Thin-tube construction assures maximum cooling efficiency.
See More

Koyo Cooling – Radiator (Part No.G1000173093KCS)

Radiator

from

$196.51
Radiator

Top-Quality Radiator Caps for 2000 Lexus GS300s

Choose a high-quality OEM or aftermarket Radiator Cap for Lexus GS300s and enjoy top-notch performance from $8.89.

Sankei Switches – Sankei Switches Radiator Cap (Part No.G101045813SAK)

Sankei Switches Radiator Cap

from

$11.27
The Sankei Switches radiator cap range has been developed to operate within original equipment manufacturer’s specifications. A faulty radiator cap can cause your car to boil-over at a lower temperature. Test or replace the coolant cap when servicing the cooling system.

Product Features:
  • Meets Original Equipment specifications.
  • Made from premium materials.
  • Designed to function on open cooling systems and overflow reservoir type systems.
See More

Carquest Premium – Radiator Cap: 16 PSI (Part No.10242)

Radiator Cap: 16 PSI

from

$14.99
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.

Product Features:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
See More

Autopart International Inc – Radiator Cap (Part No.G10101936436API)

Radiator Cap

from

$8.89
Radiator Cap

Our Top Pick for a 2000 Lexus GS300 Coolant Reservoir

Invest in a durable Coolant Reservoir for your 2000 Ford, knowing you’re getting trusted brands and expert craftsmanship.

Dorman – Non-Pressurized Coolant Reservoir (Part No.603-429)

Non-Pressurized Coolant Reservoir

from

$187.99
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.

Product Features:
  • Direct replacement – this engine coolant reservoir matches the fit and function of the original part.
  • Ideal solution – engineered for a seamless installation.
  • Durable construction – manufactured from quality materials to withstand underhood heat and vibration
  • Trustworthy design – backed by 100 years of automotive aftermarket experience
See More

Top-Rated Coolant Temperature Sensors for 2000 Lexus GS300s

Make a smart move for your 2000 Lexus GS300 with products all priced from $25.99 to $34.05.

Factory Air – Coolant Temp Sensor Switch (Part No.36424)

Coolant Temp Sensor Switch

from

$34.05
High quality OE replacement part with all components needed to complete the job

Product Features:
  • Contains gaskets, O-rings, or seals to properly replace the product
  • Brass construction for accurate temperature sensing
  • Color coded for easy identification
  • Zinc coated terminal to resist corrosion
See More

Carquest Premium – Coolant Temperature Sensor (Part No.WTC1005)

Coolant Temperature Sensor

from

$25.99
Approved materials for increased durability in even the most extreme temperatures. All MotoRad Coolant Temperature Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.

Product Features:
  • 100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
  • Thread Sealant and/or O-ring pre-installed on applicable sensors to ensure leak free performance
  • Brass sensor housing precision machined to meet or exceed OE thermal conductivity
  • OE precision matched thermistor position for correct output parameters
  • Extensive product testing includes salt spray, high/low temperature impact, thermal vibration, durability, static electricity, and micro tension, among other tests, to ensure all sensors meet or exceed OEM specifications.
See More

Top-Rated Engine Cooling Part Brands For Your 2000 Lexus GS300

When it comes to finding the perfect Engine Cooling Part for your 2000 Lexus GS300, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 19 trusted brands. We carry the most popular Engine Cooling Part brands including Sankei, FELPRO, and Carquest Premium, and more, all known for their exceptional customer ratings (average brand rating of 4.9 stars) and competitive prices, as low as $5.49. Purchasing a Engine Cooling Part from us here at Advance Auto Parts is a smart move for both you and your 2000 Lexus GS300, providing peace of mind with parts that meet or exceed OEM standards.

Popular Sankei 2000 Lexus GS300 Engine Cooling Parts

If you’re looking for a top-quality Engine Cooling Part for your 2000 Lexus GS300, Advance Auto Parts has exactly what you need with our selection of Sankei Engine Cooling Parts. We have 1 Sankei Engine Cooling Parts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $11.27, you’ll find the perfect Engine Cooling Part for your needs and budget. Sankei Engine Cooling Parts for the 2000 Lexus GS300 come highly rated, with over 1 customer reviews and an impressive average rating of 4.9 stars. Choosing a Sankei Engine Cooling Part from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Sankei Switches Radiator Cap
from $11.27
(1)
Sankei Switches Radiator Cap
“Perfect fit, fast shipping”

Top-Quality FELPRO 2000 Lexus GS300 Engine Cooling Parts

For those in search of a high-quality Engine Cooling Part for their 2000 Lexus GS300, Advance Auto Parts offers a great selection of FELPRO Engine Cooling Parts. With 1 FELPRO Engine Cooling Parts in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Engine Cooling Parts start at just $5.49, giving you a range of options to suit your budget. Backed by over 76 customer ratings and an average rating of 4.6 stars, FELPRO Engine Cooling Parts provide both reliability and excellent performance. Choosing a FELPRO Engine Cooling Part from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Engine Coolant Thermostat Seal
from $5.49
(76)
Engine Coolant Thermostat Seal
“Fit perfect!”

FAQs for 2000 Lexus GS300 Engine Cooling Parts

What are the best-selling Engine Cooling Parts for 2000 Lexus GS300s?

Out of 41 Engine Cooling Parts that fit 2000 Lexus GS300s, the following parts are the top sellers:

What’s the price range for 2000 Lexus GS300 Engine Cooling Parts?

The prices of Engine Cooling Parts for the 2000 Lexus GS300 range from $1.49 up to $519.99 for the most premium parts.

What is the average price of an Engine Cooling Parts Engine Cooling Part for a 2000 Lexus GS300?

The average price for Engine Cooling Parts for the 2000 Lexus GS300 is $80.79. Keep in mind the variety of part types within our Engine Cooling Part category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Engine Cooling Parts for other Lexus GS300 model years?

Yes, we carry Engine Cooling Parts for 13 model years of Lexus GS300s between 1993 and 2019. The following model years are the most popular for Engine Cooling Part purchases: 2019, 2006, 2005, 2004, 2003, 2002, 2001, 1999, and 1998.

What are the cheapest Engine Cooling Parts for my 2000 Lexus GS300?

The cheapest 2000 Lexus GS300 Engine Cooling Parts we carry are:

Does Advance Auto Parts sell Engine Cooling Parts for any other 2000 Lexus models?

Yes. We stock Engine Cooling Parts for 6 other popular 2000 Lexus models. Some of the most popular are 2000 ES300 Engine Cooling Parts, 2000 SC300 Engine Cooling Parts, 2000 LS400 Engine Cooling Parts, 2000 RX300 Engine Cooling Parts, and 2000 SC400 Engine Cooling Parts.

What are the top-rated Engine Cooling Parts that fit the 2000 Lexus GS300?

The one 2000 Lexus GS300 Engine Cooling Part we have in stock is the THERMOSTAT SEAL. It costs $1.49.

What types of Engine Cooling Parts do you sell for my 2000 Lexus GS300?

As of 4/10/25, these are some of the most in-demand types of Engine Cooling Parts for a 2000 Lexus GS300:

Can I get help with 2000 Lexus GS300 Engine Cooling Part orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Lexus Engine Cooling Parts and more.

What is your return policy for Lexus GS300 Engine Cooling Parts?

Advance Auto Parts keeps returns simple. For new Lexus GS300 Engine Cooling Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.